DERIVATIVES (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) instrument	Dec. 31, 2019 USD ($) instrument	Dec. 31, 2018 USD ($) instrument
Derivative [Line Items]
Unrealized gain (loss) recognized in other non-interest income	$ 8	$ (224)	$ (65)
Derivatives not designated as hedging instruments:
Derivative [Line Items]
Number of Instruments | instrument	56	33	28
Notional Amount	$ 377,010	$ 238,227	$ 172,932
Fair Value Other Assets/ (Other Liabilities)	(357)	$ (365)	$ (140)
Derivatives not designated as hedging instruments: | Swap
Derivative [Line Items]
Notional Amount	$ 358,200
Derivatives not designated as hedging instruments: | Interest Rate Swap
Derivative [Line Items]
Number of Instruments | instrument	26	15	11
Notional Amount	$ 179,085	$ 113,204	$ 76,395
Weighted Average Maturity (in years)	7 years 8 months 12 days	7 years 10 months 24 days	7 years 1 month 6 days
Fair Value Other Assets/ (Other Liabilities)	$ (15,024)	$ (6,800)	$ (3,255)
Unrealized gain (loss) recognized in other non-interest income	$ (8,224)	$ (3,544)	$ (2,281)
Derivatives not designated as hedging instruments: | Interest Rate Swap | Weighted Average Interest Rate Received
Derivative [Line Items]
Average interest rate	3.95%	4.44%	4.69%
Derivatives not designated as hedging instruments: | Interest Rate Swap | Weighted Average Contract Pay Rate
Derivative [Line Items]
Average interest rate	2.20%	4.03%	4.61%
Derivatives not designated as hedging instruments: | Reverse Interest Rate Swap
Derivative [Line Items]
Number of Instruments | instrument	26	15	11
Notional Amount	$ 179,085	$ 113,204	$ 76,395
Weighted Average Maturity (in years)	7 years 8 months 12 days	7 years 10 months 24 days	7 years 1 month 6 days
Fair Value Other Assets/ (Other Liabilities)	$ 14,702	$ 6,466	$ 3,142
Unrealized gain (loss) recognized in other non-interest income	$ 8,236	$ 3,324	$ 2,168
Derivatives not designated as hedging instruments: | Reverse Interest Rate Swap | Weighted Average Interest Rate Received
Derivative [Line Items]
Average interest rate	2.20%	4.03%	4.61%
Derivatives not designated as hedging instruments: | Reverse Interest Rate Swap | Weighted Average Contract Pay Rate
Derivative [Line Items]
Average interest rate	3.95%	4.44%	4.69%
Derivatives not designated as hedging instruments: | Risk participation agreements
Derivative [Line Items]
Number of Instruments | instrument	4	3	6
Notional Amount	$ 18,840	$ 11,819	$ 20,142
Weighted Average Maturity (in years)	2 years 9 months 18 days	5 years 7 months 6 days	15 years
Fair Value Other Assets/ (Other Liabilities)	$ (35)	$ (31)	$ (27)
Off-balance sheet risk	400	400
Unrealized gain (loss) recognized in other non-interest income	$ (4)	$ (4)	$ 48